Finding the Fourth Proportional to 1,589,212,507.77, 2,193,095,856.29 and 874,732,785.05
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Solution
The fourth proportional to 1,589,212,507.77, 2,193,095,856.29 and 874,732,785.05 is: 1,207,121,663.64
Step by Step Solution
- Step 1: Write the proportion equation
1,589,212,507.77 : 2,193,095,856.29 = 874,732,785.05 : x - Step 2: Convert to fraction form
1,589,212,507.77/2,193,095,856.29 = 874,732,785.05/x - Step 3: Cross multiply
1,589,212,507.77x = 2,193,095,856.29 × 874,732,785.05 - Step 4: Simplify right side
1,589,212,507.77x = 1,918,372,846,255,275,264 - Step 5: Solve for x
x = 1,918,372,846,255,275,264/1,589,212,507.77 - Step 6: Final answer
x = 1,207,121,663.64
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.